Post as HTML Embed from Remote

I'm trying to automate a post from "Publitio" to post video, using the doc from with:

Feed-Related Snippets
Create a new post programatically
You can create a new post programatically using th

$feedData = \[
'title' => 'Post Title',
'message' => 'Post Content', // in markdwon format.
'space_id' => 1, // 1 is the space id
'user_id' => 1, // 1 is the user id
];

// Additional Optional Data attribues
// for youtube or any other embeded video
$feedData\['media']\['url] = '<https://www.youtube.com/watch?v=video_id>'; // youtube video url
$feedData\['media']\['type'] = 'oembed';

$feed = \FluentCommunity\App\Services\FeedsHelper::createFeed($feedData); // this will return $feed Model or \WP_Error

if(is_wp_error($feed)) {
// it's an error
} else {
// it's a success
$createdFeedId = $feed->id;
$permalink = $feed->getPermalink(); // full url of the feed
}

However I need to be posted like pasting the code here, (attached image)

to paste like his script:

<div><div style="left: 0; width: 100%; height: 0; position: relative; padding-bottom: 56.25%;"><figure style="left: 0; width: 100%; height: 0; position: relative; padding-bottom: 56.25%; margin-block-end: 0; margin-block-start: 0; margin-inline-start: 0; margin-inline-end: 0;" ><iframe id="pv_7​d​gf0tJ" src="https://media.publit.io/file/Recording.html?player=1" scrolling="no" style="border: 0; top: 0; left: 0; width: 100%; height: 100%; position: absolute; overflow:hidden;" allowfullscreen="true" webkitallowfullscreen="true" mozallowfullscreen="true" ></iframe></figure></div></div>

I developed a plugin to post it following the FC documentation, I just need to figure out how to paste the code in Personalised HTML, thanks!